CVE-2019-16141 Improper Input Validation in once_cell
A panic during Lazy initialization in the once_cell Rust crate allows attackers to cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-16141?
CVE-2019-16141 is a high-severity denial of service vulnerability in n/a, published on 9 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in the once_cell crate before 1.0.1 for Rust. There is a panic during initialization of Lazy.
Weakness: CWE-20
Which versions are affected by CVE-2019-16141?
3 open source packages ship an affected version, including once_cell. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
once_cell crates.io | From 0.2.5 | 1.0.1 |
once_cell crates.io | From 0.2.5 | 1.0.1 |
once_cell crates.io | From 0.2.5 | 1.0.1 |
Products include Once Cell Project Once Cell.
How do I fix CVE-2019-16141?
Upgrade once_cell to 1.0.1 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-16141 being exploited?
There is no known exploitation of CVE-2019-16141 in the wild and no public exploit code.
Sources
Also known as GHSA-7j44-fv4x-79g9, RUSTSEC-2019-0017, UBUNTU-CVE-2019-16141.